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2009-10 Celestron Telescope Catalog

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Advanced item # 3<strong>10</strong>54 2<strong>10</strong>20 1<strong>10</strong>26-XlT 3<strong>10</strong>62 1<strong>10</strong>46-XlT 1<strong>10</strong>48 1<strong>10</strong>67-XlT<br />

Model Name C6-NGT C6-RGT C8-SGT C8-NGT C9.25-SGT C<strong>10</strong>-NGT C11-SGT<br />

Optical Design Reflector Refractor Schmidt-Cassegrain Reflector Schmidt-Cassegrain Reflector Schmidt-Cassegrain<br />

Aperture 150 mm (6”) 150 mm (6”) 203 mm (8”) 200 mm (8”) 235 mm (9.25”) 254 mm (<strong>10</strong>”) 279 mm (11”)<br />

Focal Length / Focal Ratio 750 mm / f/5 1200 mm / f/8 2032 mm / f/<strong>10</strong> <strong>10</strong>00 mm / f/5 2350 mm / f/<strong>10</strong> 1200 mm / f/4.7 2800 mm / f/<strong>10</strong><br />

Eyepiece 20 mm (38x) 20 mm (60x) 25 mm (81x) 20 mm (50x) 25 mm (94x) 20 mm (60x) 40 mm (70x)<br />

Finderscope 6x30 9x50 6x30 9x50 6x30 9x50 9x50<br />

Mount CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial CG-5 Equatorial<br />

Star Diagonal n/a 1.25” 1.25” n/a 1.25” n/a 1.25”<br />

Accessory Tray Yes Yes Yes Yes Yes Yes Yes<br />

Tripod 2” Stainless Steel 2” Stainless Steel 2” Stainless Steel 2” Stainless Steel 2” Stainless Steel 2” Stainless Steel 2” Stainless Steel<br />

CD-ROM TheSkyX TheSkyX TheSkyX TheSkyX TheSkyX TheSkyX TheSkyX<br />

Counterweights 1-7 lbs, 1-4 lbs, 1-11 lbs 2-11 lbs 1-11 lbs 2-11 lbs 2-11 lbs 3-11 lbs 3-11 lbs<br />

Power Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter Car Battery Adapter<br />

Highest Useful Magnification 354x 354x 480x 480x 555x 600x 660x<br />

Lowest Useful Magnification 21x 21x 29x 29x 34x 36x 40x<br />

Limiting Stellar Magnitude 13.4 13.4 14 14 14.4 14.5 14.7<br />

Resolution: Rayleigh .92 arc seconds .92 arc seconds .68 arc seconds .69 arc seconds .59 arc seconds .54 arc seconds .50 arc seconds<br />

Dawes Limit .77 arc seconds .77 arc seconds .57 arc seconds .58 arc seconds .49 arc seconds .46 arc seconds .42 arc seconds<br />

Light Gathering Power 459x unaided eye 459x unaided eye 843x unaided eye 843x unaided eye 1127x unaided eye 1316x unaided eye 1593x unaided eye<br />

Field of View: standard eyepiece 1.3º .83º .64º 1º .55º .83º .71º<br />

Linear FOV (@<strong>10</strong>00 yds) 68 ft. 43.8 ft. 33.6 ft. 52.5 ft. 29 ft. 43.8 ft. 38 ft.<br />

Optical Coatings Aluminum Multi-Coated StarBright XLT ® Aluminum StarBright XLT Aluminum StarBright XLT<br />

Secondary Mirror Obstruction 1.75” n/a 2.7” 2.2” 3.35” 2.3” 3.75”<br />

Diameter, Area 29%, 8.5% n/a, n/a 34%, 11% 28%, 8% 36%, 13% 23%, 5% 34%, 12%<br />

Optical Tube Length 27 inches 50.5 inches 17 inches 37 inches 22 inches 45 inches 24 inches<br />

<strong>Telescope</strong> Weight 54 lbs 68 lbs 54.5 lbs 67 lbs 73 lbs 93 lbs 91 lbs<br />

Computerized Hand Control * * * * * * *<br />

Slew Speeds Nine slew speeds, 3º/sec MAX Nine slew speeds, 3º/sec MAX Nine slew speeds, 3º/sec MAX Nine slew speeds, 3º/sec MAX Nine slew speeds, 3º/sec MAX Nine slew speeds, 3º/sec MAX Nine slew speeds, 3º/sec MAX<br />

24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08 24bit, 0.08<br />

Software Precision arcsec calculation arcsec calculation arcsec calculation arcsec calculation arcsec calculation arcsec calculation arcsec calculation<br />

RS-232 communication RS-232 communication RS-232 communication RS-232 communication RS-232 communication RS-232 communication RS-232 communication<br />

Hand Control Ports port on hand control port on hand control port on hand control port on hand control port on hand control port on hand control port on hand control<br />

Motor Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports Aux Port, Autoguide Ports<br />

Tracking Rates Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar Sidereal, Solar and Lunar<br />

Tracking Modes EQ North and EQ South EQ North and EQ South EQ North and EQ South EQ North and EQ South EQ North and EQ South EQ North and EQ South EQ North and EQ South<br />

AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star AutoAlign, 2-Star<br />

Alignment Procedures Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align Alignment, Quick Align<br />

Database * * * * * * *<br />

Complete Revised NGC <strong>Catalog</strong> 7,840 7,840 7,840 7,840 7,840 7,840 7,840<br />

Complete Messier <strong>Catalog</strong> 1<strong>10</strong> 1<strong>10</strong> 1<strong>10</strong> 1<strong>10</strong> 1<strong>10</strong> 1<strong>10</strong> 1<strong>10</strong><br />

Complete IC <strong>Catalog</strong> 5,386 5,386 5,386 5,386 5,386 5,386 5,386<br />

Complete Caldwell <strong>10</strong>9 <strong>10</strong>9 <strong>10</strong>9 <strong>10</strong>9 <strong>10</strong>9 <strong>10</strong>9 <strong>10</strong>9<br />

Abell Galaxies 2,712 2,712 2,712 2,712 2,712 2,712 2,712<br />

Solar System objects 9 9 9 9 9 9 9<br />

Famous Asterisms 20 20 20 20 20 20 20<br />

Selected CCD Imaging Objects 25 25 25 25 25 25 25<br />

Selected SAO Stars 29,500 29,500 29,500 29,500 29,500 29,500 29,500<br />

Total Object Database 45,492 45,492 45,492 45,492 45,492 45,492 45,492<br />

*Computerized Hand Control Double line, 16 character Liquid Crystal Display; 19 LED backlit buttons<br />

*Database 40,000+ objects, <strong>10</strong>0 user defined programmable objects. Enhanced information on over 200 objects.<br />

Specifications are subject to change without notice or obligation.<br />

advanced specifications 43

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